{
  "manageEntity": {
    "action": "Save",
    "entityId": "2071514213",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xaa04e1af1c62b6fb9c337abc7d82545e9307a933bb2f2520c92819767af5b15b",
    "signature": "0xda9a2ab6c764ecf938bf5ca8e3a167eaa1a0bc877b6c66da646a4f457a1cccfa515a3d2246e9c28d1e79efffc8b7cc03ff066a686b5118ca74d78ddf44aafbd61c",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}